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Dimensions (in inches):
Wiring Connections:

Zero Speed Switch System
Utilizing Axial Magnetic Target Disk
Zero Speed Switch System
Utilizing Radial Magnetic Target Disk
Zero Speed Switch System
Utilizing Geartooth Wheel

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Features and Benefits
- Over speed, under speed and zero speed sensing
- Senses magnetic and ferrous targets
- Self-contained unit incorporates sensor and relay
- Isolated outputs with 5 amp switching capacity
- Diagnostic indicators
- Not rotation direction sensitive
- Relay latch option
- Operating voltages: 6-24 VDC and 120 VAC
- Use outdoors or in wash down areas
- Prompt alert for stalled or zero speed condition
- Easy interface to existing systems
- Helps prevent equipment damage and material spoilage
Overview
The ZS09P Zero Speed Switch Sensor is a self-contained device that combines sensor and switch for use in over speed, under speed, or zero speed applications. It senses magnetic and low carbon ferrous targets. Outputs are isolated and can be easily integrated with any controller or existing system. It is about the size of a prox switch, but incorporates intelligent speed sensing circuitry not found in simple on/off devices. Use the ZS09P Zero Speed Switch Sensor for switching control circuit loads or logic inputs (PLC, DCS, etc.).
Operation
When motion is either detected or reaches setpoint (depending upon application), the relay output changes state. It remains in this state until under speed or zero speed condition occurs (depending upon application).
Specifications
Power Requirements:
6-24 VDC, 50/60 Hz (for Part No. ZS09P-D)
120 VAC, 50/60 Hz (for Part No. ZS09P-120)
Current Draw: 50 mA
Fuse: Internal 1/2 Amp non-replaceable fuse
Relay Output: (specify when ordering)
SPDT Form 'C' dry relay contact (Normally Open/Closed)
SPST Normally Open
SPST Normally Closed
Contact ratings:
5 A, 240 VAC
5 A, 30 VDC
Vibration resistance (function) NO/NC contact >15/5 g
Shock resistance (destruction) >100 g
Operating Frequency:
Hall Effect and Inductive (Geartooth): 10 kHz maximum
Hall Effect Only: 25 kHz maximum
Sensing Distance (Gap):
1/16" to 1/8" using Geartooth Wheel, Bolt Head, etc.
1/8" to 1/4" using Magnetic Ring.
1/8" to 5/8" using Magnet or Magnetic Disk.
(Magnetic target sensing distance based on Phares Electronics, LLC magnetic disks and magnet types).
Minimum Geartooth Sizes:
1/8" geartooth length, width, depth and gap.
Geartooth Material: Low carbon steel
Operating Temperature: -40°F to 140°F
Weight: 6 oz.
Cable: 4 ft., 6 conductor, 22 AWG, unshielded
(Custom cable lengths available.)
See the Ordering Information table for part numbers and corresponding specifications.
Quick Technical Application Notes
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